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<h1 class="title">real QML基本类型</h1>
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<p>有小数点的数字。</p>
<p><code>real</code> 类型指的是带有小数点的数字，例如1.2或-29.8。</p>
<p>示例：</p>
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  <span class="type"><a href="../qtquick/qml-qtquick-item.html">Item</a></span> { <span class="name">width</span>: <span class="number">100.45</span>; <span class="name">height</span>: <span class="number">150.82</span> }

</pre>
<p><b>注意:</b>在QML中，所有实数都以双精度<a href="http://en.wikipedia.org/wiki/IEEE_754">IEEE浮点格式</a>存储。</p>
<p>这个基本类型由QML语言提供。</p>
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<p><b>请参考 </b><a href="qtqml-typesystem-basictypes.html">QML基本类型</a>.</p>
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